MEDIUMMCQ SINGLENEET ChemistryInorganic Chemistryp-Block (group 13 and 14)Introduction to p-block Elements
Group 13 elements show +1 and +3 oxidation states. Relative stability of +3 oxidation state may be given as (a) Tl Ga Al B In + + + + + > > > > (b) B Al Ga In Tl + + + + + > > > > (c) Al Ga Tl In B + + + + + > > > > (d) Al B Ga Tl In + + + + + > > > >
Answer
B
Explanation
Downward group 13, +3 O.S. stability decreases due to inert pair effect.
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